Results 1 to 10 of about 27,054 (290)

Off-lattice microscopic Monte Carlo modelling of molecular hydrogen formation on carbonaceous dust grains

Monthly Notices of the Royal Astronomical Society
ABSTRACT In this work, we present an off-lattice Monte Carlo model of accretion and migration of hydrogen atoms on a rough surface of carbon dust grain. The migration of physisorbed atoms by means of thermal diffusion and quantum tunnelling through barriers between the surface potential minima is considered.
N A Satonkin, A B Ostrovskii, A A Mozhegorov, A F Punanova, A I Vasyunin   +4 more
openaire   +2 more sources

Prominent Mid-infrared Excess of the Dwarf Planet (136472) Makemake Discovered by JWST/MIRI Indicates Ongoing Activity

The Astrophysical Journal Letters
We report on the discovery of a very prominent mid-infrared (18–25 μ m) excess associated with the trans-Neptunian dwarf planet (136472) Makemake. The excess, detected by the Mid-Infrared Instrument of the James Webb Space Telescope, along with previous ...
Csaba Kiss, Thomas G. Müller, Anikó Farkas-Takács, Attila Moór, Silvia Protopapa, Alex H. Parker, Pablo Santos-Sanz, Jose Luis Ortiz, Bryan J. Holler, Ian Wong, John Stansberry, Estela Fernández-Valenzuela, Christopher R. Glein, Emmanuel Lellouch, Esa Vilenius, Csilla E. Kalup, Zsolt Regály, Róbert Szakáts, Gábor Marton, András Pál, Gyula M. Szabó   +20 more
doaj   +1 more source

Magnetization of a Single Carbonaceous Grain Obtained by Field-Induced Acceleration [PDF]

Journal of Physics: Conference Series, 2017
Keiji Hisayoshi, Chiaki Uyeda
openaire   +1 more source

Energy partitioning in H₂ formation on interstellar carbonaceous grains. Insights from <i>ab initio</i> molecular dynamics simulations. [PDF]

Phys Chem Chem Phys
Jubert L, Martínez-Bachs B, Pareras G, Rimola A.   +3 more
europepmc   +1 more source

Impact-processed nitrogen-bearing organics in Chang'e-5 and Chang'e-6 lunar regolith. [PDF]

Sci Adv
Dong M, Hao J, Changela HG, Tian H, Huang S, He Y, Liu X, Li X, Hu S, Yang W, Lin Y.   +10 more
europepmc   +1 more source

Interstellar ices as carriers of supernova material to the early solar system. [PDF]

Nat Commun
Bizzarro M, Schiller M, Holst J, Bouvier L, Groen M, Moynier F, van Kooten EMME, Schönbächler M, Haugbølle T, Watson D, Johansen A, Connelly JN, Bizzarro E.   +12 more
europepmc   +1 more source

Direct Samples of Interstellar and Interplanetary Material with IMAP. [PDF]

Space Sci Rev
Szalay JR, Provornikova E, Ayari E, Bzowski M, Christian ER, Funsten HO, Galli A, Gkioulidou M, Horányi M, Livi S, McComas DJ, Möbius E, Ogasawara K, Rahmanifard F, Rankin JS, Reisenfeld DB, Schwadron NA, Sternovsky Z, Swaczyna P, Turner D, Zank GP, Zirnstein EJ.   +21 more
europepmc   +1 more source

Abundant supernova dust and heterogeneous aqueous alteration revealed by stardust in two lithologies of asteroid Bennu. [PDF]

Nat Astron
Nguyen AN, Seifert LB, Shimizu K, Thomas-Keprta K, Le L, Keller LP, Clemett SJ, Rahman Z, Barnes JJ, Connolly HC, Lauretta DS.   +10 more
europepmc   +1 more source

High-temperature wood silicification: constraints from fluid and carbonaceous inclusions in quartz from Qitai, NW China. [PDF]

Sci Rep
Liu W, Shi G, Zhou Z, Qin L, Li X, Quan X, Yuan Y, Häger T, Jantschke A, Botcharnikov R.   +9 more
europepmc   +1 more source

Shear-Induced Graphitization in Tongyuanpu Shear Zone, Liaodong Peninsula of Eastern China: Insights from Graphite Occurrences, Nanostructures and Carbon Sources. [PDF]

Nanomaterials (Basel)
Shi M, Cheng N, Li J, Hou Q, Guo Q, Pan J.   +5 more
europepmc   +1 more source